| Ironfistman vs Law | 3–10 | 23.08% |
| Ironfistman vs Jin | 2–11 | 15.38% |
| Ironfistman vs Reina | 1–12 | 7.69% |
| Ironfistman vs Yoshimitsu | 2–9 | 18.18% |
| Ironfistman vs Steve | 4–7 | 36.36% |
| Ironfistman vs King | 3–5 | 37.50% |
| Ironfistman vs Asuka | 2–6 | 25.00% |
| Ironfistman vs Eddy | 2–6 | 25.00% |
| Ironfistman vs Feng | 0–7 | 0.00% |
| Ironfistman vs Hwoarang | 1–5 | 16.67% |
| Ironfistman vs Lee | 1–5 | 16.67% |
| Ironfistman vs Leroy | 0–5 | 0.00% |
| Ironfistman vs Azucena | 2–3 | 40.00% |
| Ironfistman vs Lili | 0–4 | 0.00% |
| Ironfistman vs Dragunov | 2–2 | 50.00% |
| Ironfistman vs Victor | 0–4 | 0.00% |
| Ironfistman vs Bryan | 0–3 | 0.00% |
| Ironfistman vs Kazuya | 0–3 | 0.00% |
| Ironfistman vs Jack-8 | 0–3 | 0.00% |
| Ironfistman vs Claudio | 0–3 | 0.00% |
| Ironfistman vs Nina | 0–3 | 0.00% |
| Ironfistman vs Xiaoyu | 0–2 | 0.00% |
| Ironfistman vs Leo | 0–2 | 0.00% |
| Ironfistman vs Lars | 1–1 | 50.00% |
| Ironfistman vs Alisa | 0–2 | 0.00% |
| Ironfistman vs Panda | 0–2 | 0.00% |
| Ironfistman vs Zafina | 2–0 | 100.00% |
| Ironfistman vs Jun | 0–2 | 0.00% |
| Ironfistman vs Miary Zo | 0–2 | 0.00% |
| Ironfistman vs Devil Jin | 0–1 | 0.00% |
| Ironfistman vs Shaheen | 0–1 | 0.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.